Seneca,
Moral letters to Lucilius — Letter 93…
“ And what, you ask, is the fullest span of life? It is living until you possess wisdom. He who has attained wisdom has reached, not the furthermost, but the most important, goal. Such a one may indeed exult boldly and give thanks to the gods – aye, and to himself also – and he may count himself Nature's creditor for having lived. He will indeed have the right to do so, for he has paid her back a better life than he has received. He has set up the pattern of a good man, showing the quality and the greatness of a good man. ”
